US12058585B2ActiveUtilityA1

Indoor map generation using radio frequency sensing

72
Assignee: QUALCOMM INCPriority: Apr 13, 2021Filed: May 31, 2023Granted: Aug 6, 2024
Est. expiryApr 13, 2041(~14.7 yrs left)· nominal 20-yr term from priority
Inventors:Rishabh RajXiaoxin ZhangParthiban EllappanShree Raman SrinivasanRavindra Chauhan
H04W 72/54H04W 84/18H04W 80/06H04W 4/025H04W 4/80H04W 84/12G01S 7/006G01S 13/003G01S 13/42G01S 13/0209G01S 13/89H04W 4/023H04W 4/33
72
PatentIndex Score
0
Cited by
18
References
30
Claims

Abstract

Disclosed are systems and techniques for performing mapping using radio frequency (RF) sensing. For instance, a server can obtain a first set of RF sensing data and orientation data corresponding to a first wireless device from a plurality of wireless devices. The first set of RF sensing data can be associated with at least one received waveform that is a reflection of a transmitted waveform from a first reflector. Based on the first set of RF sensing data, orientation data, and location data corresponding to the first wireless device, an indoor map can be generated that includes a reference to the reflector.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
       1. An apparatus for indoor mapping, comprising:
 at least one memory; 
 at least one transceiver; and 
 at least one processor coupled to the at least one memory and the at least one transceiver, the at least one processor configured to:
 transmit, via the at least one transceiver, a radio frequency (RF) signal; 
 receive, via the at least one transceiver, a plurality of reflected RF signals that are each a reflection of the transmitted RF signal from at least one object in an indoor space; 
 obtain RF sensing data for the plurality of reflected RF signals from the at least one object; and 
 present an indoor map for the indoor space that includes a reference to the at least one object, wherein the reference to the at least one object is based on the RF sensing data. 
 
 
     
     
       2. The apparatus of  claim 1 , wherein the at least one processor is configured to:
 transmit, via the at least one transceiver to a server device, the RF sensing data, device location data, and device orientation data. 
 
     
     
       3. The apparatus of  claim 2 , wherein the at least one processor is configured to:
 receive, from the server device, the indoor map for the indoor space that includes the reference to the at least one object. 
 
     
     
       4. The apparatus of  claim 1 , wherein the at least one processor is configured to:
 calculate, based on the RF sensing data, device location data, and device orientation data, a distance and an angle of arrival between the apparatus and the at least one object. 
 
     
     
       5. The apparatus of  claim 4 , wherein the device location data is based on the RF sensing data. 
     
     
       6. The apparatus of  claim 1 , wherein the at least one processor is configured to:
 download, from a server device, a partial indoor map for the indoor space; and 
 modify the partial indoor map for the indoor space to include the reference to the at least one object. 
 
     
     
       7. The apparatus of  claim 6 , wherein the at least one processor is configured to:
 transmit, via the at least one transceiver to the server device, the modified partial indoor map that includes the reference to the at least one object. 
 
     
     
       8. The apparatus of  claim 1 , wherein the RF signal comprises at least one of a Wi-Fi signal, a New Radio (NR) signal, a RADAR signal, an Ultra-wideband (UWB) signal, or any combination thereof. 
     
     
       9. The apparatus of  claim 1 , wherein the RF sensing data comprises channel state information (CSI) data. 
     
     
       10. A method of indoor mapping performed at a wireless device, comprising:
 transmitting a radio frequency (RF) signal; 
 receiving a plurality of reflected RF signals that are each a reflection of the transmitted RF signal from at least one object in an indoor space; 
 obtaining RF sensing data for the plurality of reflected RF signals from the at least one object; and 
 presenting an indoor map for the indoor space that includes a reference to the at least one object, wherein the reference to the at least one object is based on the RF sensing data. 
 
     
     
       11. The method of  claim 10 , further comprising:
 transmitting, to a server device, the RF sensing data, device location data, and device orientation data. 
 
     
     
       12. The method of  claim 11 , further comprising:
 receiving, from the server device, the indoor map for the indoor space that includes the reference to the at least one object. 
 
     
     
       13. The method of  claim 10 , further comprising:
 calculating, based on the RF sensing data, device location data, and device orientation data, a distance and an angle of arrival between the wireless device and the at least one object. 
 
     
     
       14. The method of  claim 13 , wherein the device location data is based on the RF sensing data. 
     
     
       15. The method of  claim 10 , further comprising:
 downloading, from a server device, a partial indoor map for the indoor space; and 
 modifying the partial indoor map for the indoor space to include the reference to the at least one object. 
 
     
     
       16. The method of  claim 15 , further comprising:
 transmitting, to the server device, the modified partial indoor map that includes the reference to the at least one object. 
 
     
     
       17. The method of  claim 10 , wherein the RF signal comprises at least one of a Wi-Fi signal, a New Radio (NR) signal, a RADAR signal, an Ultra-wideband (UWB) signal, or any combination thereof. 
     
     
       18. The method of  claim 10 , wherein the RF sensing data comprises channel state information (CSI) data. 
     
     
       19. A non-transitory computer-readable medium of a wireless device comprising at least one instruction for causing a computer or processor to:
 transmit, via at least one transceiver, a radio frequency (RF) signal; 
 receive, via the at least one transceiver, a plurality of reflected RF signals that are each a reflection of the transmitted RF signal from at least one object in an indoor space; 
 obtain RF sensing data for the plurality of reflected RF signals from the at least one object; and 
 present an indoor map for the indoor space that includes a reference to the at least one object, wherein the reference to the at least one object is based on the RF sensing data. 
 
     
     
       20. The non-transitory computer-readable medium of  claim 19 , further comprising at least one instruction for causing the computer or processor to:
 transmit, via the at least one transceiver to a server device, the RF sensing data, device location data, and device orientation data. 
 
     
     
       21. The non-transitory computer-readable medium of  claim 20 , further comprising at least one instruction for causing the computer or processor to:
 receive, from the server device, the indoor map for the indoor space that includes the reference to the at least one object. 
 
     
     
       22. The non-transitory computer-readable medium of  claim 19 , further comprising at least one instruction for causing the computer or processor to:
 calculate, based on the RF sensing data, device location data, and device orientation data, a distance and an angle of arrival between the wireless device and the at least one object. 
 
     
     
       23. The non-transitory computer-readable medium of  claim 22 , wherein the device location data is based on the RF sensing data. 
     
     
       24. The non-transitory computer-readable medium of  claim 19 , further comprising at least one instruction for causing the computer or processor to:
 download, from a server device, a partial indoor map for the indoor space; and 
 modify the partial indoor map for the indoor space to include the reference to the at least one object. 
 
     
     
       25. The non-transitory computer-readable medium of  claim 24 , further comprising at least one instruction for causing the computer or processor to:
 transmit, via the at least one transceiver to the server device, the modified partial indoor map that includes the reference to the at least one object. 
 
     
     
       26. The non-transitory computer-readable medium of  claim 19 , wherein the RF signal comprises at least one of a Wi-Fi signal, a New Radio (NR) signal, a RADAR signal, an Ultra-wideband (UWB) signal, or any combination thereof. 
     
     
       27. The non-transitory computer-readable medium of  claim 19 , wherein the RF sensing data comprises channel state information (CSI) data. 
     
     
       28. An apparatus for indoor mapping, comprising:
 means for transmitting a radio frequency (RF) signal; 
 means for receiving a plurality of reflected RF signals that are each a reflection of the transmitted RF signal from at least one object in an indoor space; 
 means for obtaining RF sensing data for the plurality of reflected RF signals from the at least one object; and 
 means for presenting an indoor map for the indoor space that includes a reference to the at least one object, wherein the reference to the at least one object is based on the RF sensing data. 
 
     
     
       29. The apparatus of  claim 28 , wherein the means for transmitting is configured to:
 transmit, to a server device, the RF sensing data, device location data, and device orientation data. 
 
     
     
       30. The apparatus of  claim 29 , wherein the means for receiving is configured to:
 receive, from the server device, the indoor map for the indoor space that includes the reference to the at least one object.

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